4+(x+4)+7x=9

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Solution for 4+(x+4)+7x=9 equation:


Simplifying
4 + (x + 4) + 7x = 9

Reorder the terms:
4 + (4 + x) + 7x = 9

Remove parenthesis around (4 + x)
4 + 4 + x + 7x = 9

Combine like terms: 4 + 4 = 8
8 + x + 7x = 9

Combine like terms: x + 7x = 8x
8 + 8x = 9

Solving
8 + 8x = 9

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + 8x = 9 + -8

Combine like terms: 8 + -8 = 0
0 + 8x = 9 + -8
8x = 9 + -8

Combine like terms: 9 + -8 = 1
8x = 1

Divide each side by '8'.
x = 0.125

Simplifying
x = 0.125

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